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Finding the Fourth Proportional to 183,780.72, 253,713.72 and 123,667.44

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Solution

The fourth proportional to 183,780.72, 253,713.72 and 123,667.44 is: 170,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,780.72 : 253,713.72 = 123,667.44 : x
  2. Step 2: Convert to fraction form
    183,780.72/253,713.72 = 123,667.44/x
  3. Step 3: Cross multiply
    183,780.72x = 253,713.72 × 123,667.44
  4. Step 4: Simplify right side
    183,780.72x = 31,376,126,245.28
  5. Step 5: Solve for x
    x = 31,376,126,245.28/183,780.72
  6. Step 6: Final answer
    x = 170,725.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.